Results 21 to 30 of about 92,064 (262)

Scalable diagnostics for global atmospheric chemistry using Ristretto library (version 1.0) [PDF]

Geoscientific Model Development, 2019
We introduce a new set of algorithmic tools capable of producing scalable, low-rank decompositions of global spatiotemporal atmospheric chemistry data.
M. Velegar, N. B. Erichson, C. A. Keller, C. A. Keller, J. N. Kutz   +4 more
doaj   +1 more source

Global atmospheric chemistry – which air matters [PDF]

Atmospheric Chemistry and Physics, 2017
An approach for analysis and modeling of global atmospheric chemistry is developed for application to measurements that provide a tropospheric climatology of those heterogeneously distributed, reactive species that control the loss of methane and the ...
M. J. Prather, X. Zhu, C. M. Flynn, S. A. Strode, S. A. Strode, J. M. Rodriguez, S. D. Steenrod, S. D. Steenrod, J. Liu, J. Liu, J.-F. Lamarque, A. M. Fiore, L. W. Horowitz, J. Mao, L. T. Murray, D. T. Shindell, S. C. Wofsy   +16 more
doaj   +1 more source

Spatiotemporal analysis of atmospheric aerosols in African environments using MERRA-2 data (1980–2024): Impacts on climate extremes

iScience
Summary: This study investigates atmospheric aerosol trends and their climatic impacts across Africa from 1980 to 2024 using MERRA-2 reanalysis data.
Daniel O. Omokpariola
doaj   +1 more source

Quantifying atmospheric transport, chemistry, and mixing using a new trajectory-box model and a global atmospheric-chemistry GCM [PDF]

Geoscientific Model Development, 2009
We present a novel method for the quantification of transport, chemistry, and mixing along atmospheric trajectories based on a consistent model hierarchy.
H. Riede, P. Jöckel, R. Sander
doaj  

Improvement in Modeling of OH and HO₂ Radical Concentrations during Toluene and Xylene Oxidation with RACM2 Using MCM/GECKO-A

Atmosphere, 2021
Due to their major role in atmospheric chemistry and secondary pollutant formation such as ozone or secondary organic aerosols, an accurate representation of OH and HO2 (HOX) radicals in air quality models is essential.
Victor Lannuque, Barbara D’Anna, Florian Couvidat, Richard Valorso, Karine Sartelet   +4 more
doaj   +1 more source

Atmospheric Chemistry and Air Pollution

The Scientific World Journal, 2003
Atmospheric chemistry is an important discipline for understanding air pollution and its impacts. This mini-review gives a brief history of air pollution and presents an overview of some of the basic photochemistry involved in the production of ozone and
Jeffrey S. Gaffney, Nancy A. Marley
doaj   +1 more source

A compilation of tropospheric measurements of gas-phase and aerosol chemistry in polar regions [PDF]

Earth System Science Data, 2012
Measurements of atmospheric chemistry in polar regions have been made for more than half a century. Probably the first Antarctic ozone data were recorded in 1958 during the International Geophysical Year.
R. Sander, J. Bottenheim
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

The atmospheric chemistry box model CAABA/MECCA-3.0 [PDF]

Geoscientific Model Development, 2011
We present version 3.0 of the atmospheric chemistry box model CAABA/MECCA. In addition to a complete update of the rate coefficients to the most recent recommendations, a number of new features have been added: chemistry in multiple aerosol size bins;
R. Sander, A. Baumgaertner, S. Gromov, H. Harder, P. Jöckel, A. Kerkweg, D. Kubistin, E. Regelin, H. Riede, A. Sandu, D. Taraborrelli, H. Tost, Z.-Q. Xie   +12 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source